scheaubstadtee



,(N o Model.) 2 Sheets-Sheet 1.

0. SGHRAUBSTADTER, Jr. 8; 0. R. SOHILLING.

BLACK LEAD MACHINE.

Patented 0ct.8,1895.

Hal

AN DREW MEMHAM. mmo-umawAsnm GTON. D c

(No Model.) 2 SheetsSheet 2.

G. SGHRAUBSTADTER, Jr. 85 R. SGHILLING.

BLACK LEAD MACHINE.

No. 547,456 Patented Oct. 8, 1895.,

AN DREW BERMMM. PHOTD-LI'MOWASNINFION DC.

Um rnn STATES ATENI reins.

CARL SOHRAUBSTADTER, JR, AND CHARLES R. SOHILLING, OF ST. LOUIS,

MISSOURI, ASSIGNORS TO THE WESTERN ENGRAVERS SUPPLY COM- PANY, OF SAMEPLACE.

BLACK-LEAD MACH l N E.

SPECIFICATION forming part of Letters Patent No. 547,456, dated October8, 1895.

Application filed March 6, 1894. Serial No. 502,357- (No model.)

To @652 whom it may concern.-

Be it known that we, CARL ScHRAUBs'rAD- TER, J12, and CHARLES R.SGHILLING, of the city of St. Louis, in the State of Missouri, haveinvented a certain new and useful Improvement in Black-Lead Machines, ofwhich the following is a full, clear, and exact description, referencebeing had to the accompanying drawings, forming part of thisspecification.

Our invention relates to an improved machine for coating with black-leadthe molds of articles that are to be electrotyped, such as wood-cuts,zinc etchings, &c.; and our invention consists in features of noveltyhereinafter fully described, and pointed out in the claims.

Figure I is a top or plan view of our machine with all the housingsexcept a small portion removed. Fig. II is a detail view showing part ofthe signal. Fig. III is a similar view with the ratchet-frame or segmentof the signal removed. Fig. IV is a rear elevation showing the frame ofthe machine, the main shaft, with its pulleys, and the beltshifter. Fig.V is a detail front View showing part of the frame and the lever formoving the belt-shifter by hand. Fig. VI is a side elevation, partly insection. Fig. VII is a vertical transverse section taken on line VIIVII, Fig. VI. Fig. VIII is another view of'the signal or gong. Fig. IXis a detail section of the hopper and discharge-valve. Fig. X is adetail section showing the hopper and part of the ratchet. Fig. XI is adetail plan view showing part of the hopper-valve and part of theratchet. Fig. XII is a detail View showing the link or arm whichconnects one of the brushes to the frame of the machine. Fig. XIII is adetail View of one of the eccentrics and the brush.

Referring to the drawings, 1 represents the frame of the machine, whichis supported on suitable legs 2. p

3 representsthe form-carrier or table, which in the operation of themachine is moved back and forth over the frame 1 by means of a screw4.,journa1ed to the frame at 5, and which passes through a box 6 on theunder side of the table, (see Fig. VII,) the box having a threaded unionwith the screw.

The frame 1 consists merely of sides 7 and ends 8, and stretching acrossfrom end to end are strips or rods 9, which support the table orform-carrier, as shown in Fig. VII. The screw 4 is turned through meansof a wormwheel 10,engaged bya worm 11 on a shaft 12, journaled to theframe 1 by means of boxes 13, and which is provided at one end with atight pulley 15 and loose pulleys 14E.

It Will be understood that the table 3 will be moved in eitherdirection, according to the direction in which the shaft 12 is turned.

16 represents a belt-shifter, consisting of loops 17, through which thebelts pass and which are supported on arms 18, pivoted at 19 to abracket 20, secured to the frame 1..

21 represents a rod having a slotted head 22, which receives pins 23 inthe arms 18. At each end of the slot on the head is a notch 24, in whichthe respective pins 23 rest and are retained when the belts have beenshifted. By moving the rod 21 the belts will be moved onto the differentpulleys, so that the table 3 will be moved in either direction desired.This is accomplished as follows: In Fig. I the parts are shown in thefarthest position to the left that they ever assume. When the bar is tobe shifted the outside arm 18 is moved by the slotted head on its pivot19. It will be seen that moving on this are of a circle its pin 23 willbe disengaged from the notch 24 and the pin will be moved into the longitudinal slot of the head. The continued movement of the rod brings theinner end of the slot against the pin 23 of the inside arm, causing thisarm to be moved to shift its belt, the outside arm having been moved toshift its belt while the pin 23 is being disengaged from the notch 24.,for as soon as the pin enters the longitudinal slot of the rod theoutside arm will cease to move. of the slot comes against the pin 23 ofthe inside arm, this armgbegins to move in an arc of which its pivot 19is the center, and it is necessarily drawn into the notch 24. attheinner end of the slot of the rod or bar. When the rod is shifted in theother direction, the

When the end inside arm gradually moves out of the inner notch 24, (thearm swinging upon an arc of a circle) and when the pin has moved out ofthe notch the inside arm is in the position, (shown in Fig. 1,) the belthaving been shifted sufliciently far, and the arm now remains at restduring the continued movement of the rod 21, which shifts the outsidearm when the outer end of the slot reaches the pin of the outside arm.

For the purpose of automatically shifting the belts we employ a rod 25,extending from end to end of the frame, and which is connected to acrank 26 on apin 27, journaled in one end of the frame 1. On the pin 27is also a lever 28, to which one end of the rod 21 is connected. On therod 25, near each end, isacollar 29, held by aset-screw 30, so that itcan be adjusted in or out. Just as the table 3 has about reached thelimit of its movement in one direction it comes against one of thecollars 29 and shifts the belts through the described mechanism. Thetable now commences to move in the opposite direction and continues todo so until it comes against the other collar 29, and then the belts areshifted again and the table commences to move back. For the purpose ofpermitting the belts to be shifted by hand we employ a lever 31,connected to the frame at 32 and to the rod 25 at By operating thislever the belts may be moved by hand, as will be readily understood.

As the table is moved back and forth the black-lead is applied to thearticle supported thereon by means of brushes 34 and 35. The brush 34 ismoved transversely of the ma chine through means of eccentrics 36,secured to shafts 37,journaled in boxes 38, secured to posts 38 on theframe of the machine. The brush is connected to the eccentric by boxes39. On the shafts 37 are beveled gear-wheels 40, with which mesh similarwheels 41, secured to a shaft 42, journaled in boxes 44, secured toposts 44 on the frame of the machine. The shaft 42 has a pulley 45 forbelt connection with a pulley 46 on the shaft 12. As the shafts 37 areturned, the brush 34 will be oscillated back and forth across the tabletransversely of the direction in which the table moves. The brush issecured to the boxes 39 through means of arms 47, which are preferablymade in two overlapping parts, as shown in Figs. VII, the parts beingconnected by bolts 48, passing through slots in one of the parts, sothat the brushes can be raised or lowered to suit the height of thetable and may be lowered as they become worn away.

The brush 35 is connected by arms 50 to boxes 51, the arms 50 beingpreferably formed in overlapping parts and connected together in thesame manner and forthe same purpose as the arms 47, as shown in Fig.XIII. The boxes 51 inclose eccentrics 52 on the shaft 42, so that as theshaft is turned the brush will have a vertical movement imparted to itby of the frame.

the eccentrics, and this movement is transmitted into a vertical andoscillating movement by connecting the brush to the frame I of themachine by means of an arm 54, hinged to the machine at 55 and to thebrush at 56. The brush 34 moving transversely of the table and the brush35 oscillating in the direction of the movement of the table causes theblack-lead to be worked into the depressions and interstices of thearticle being treated.

represents a hopper located on the frame 1 and beneath which the tablemoves. The black-lead is placed in this hopper, either by hand orautomatically, from the receptacle 61, by means of buckets or scoops 62,secured by arms 63- to a shaft 64,j'ournaled in the sides 7 On the shaft64 is a lever 05, (see dotted lines, Fig. V1,) which is connected by astrip 66 to the table 3. As the table reaches the limit of its forwardmovement, it draws the lever into the position shown at 65, which bringsthe arms 63 and bucket 62 into the position shown by dotted lines, Fig.VI, and dumps a quantity of the black-lead into the hopper 60. As thetable moves back,

the weight of the arms and scoops causes them to move back to theirnormal position, and they carry the lever 65 back with them. The scoops62 are preferably connected to the arms 63 by means ofeccentrically-placed in small quantities from the hopper and deposit itupon the article being treated. To automatically operate the valve, weemploy a ratchet consisting of a wheel 71, the teeth of which areengaged by a spring-actuated pawl shown in Figs. X and XI.

72, fitting in a lever 73, the head of the lever being fitted onto oneend of the valve, as In the outer end of the lever is a spring-actuatedpin 74, which, as the table moves back, engages in a recess 75 in thetable and causes the lever to swing back, thus operating the valve thedistance of one of its grooves and depositing the lead contained in thegroove onto the article being treated. As the table moves forward again,it brings the lever 73 back to its normal position ready to be operatedagain the next time the table recedes.

80 represents a gong, the hammer of which is connected by a cord 81 to acrank 82, the gong and crank being mounted in the hous- =ing 83, whichincloses the brush, table, and

other parts of the machine. Inside of the housing is a fixed frame 84and a movable frame 85, mounted on the shaft or pin 86, which carriesthe craukl82. On the table 3 ICC slack of the cord 81 is taken up andthe gong is sounded, indicating to the workmen that the article has beensufficiently treated. The

backward movement of the frame is preventedby a pawl 89. (See Fig. II.)The pawl 87 laps the lower bar 90 of the frame 84, and this bar isprovided with a recess 91, (see Fig. III,) which allows the point of thepawl to engage a tooth of the frame 85, and then as the table advancesmoves the pawl out of engagement with the tooth. The lower edge of thebar 90 is substantially on a line with the points of the teeth, so thatthe engagement of the pawl 87 with the teeth is controlled by therecess91. To cause the alarm to be sounded sooner or later with respect to themovements back and forth of the table, we employ a pin 93, which fits inholes 94: in the frames 84, and against the outer end of which the frame85 impinges, as shown in Fig. II. If the pin is in the hole shown inFig. II, there will be less slack in the cord 81 to be taken up by thetable than there will be should the pin be in one of the other holesshown, and by placing the pin in the desired hole the gong will besounded at the proper time relatively to the movement back and forth ofthe table.

WVe claim as our invention- 1. In a blacklead machine, the combinationof a reciprocating table, brushes arranged over the table, and mechanismfor operating the brushes, whereby one of the brushes has imparted to ita movement transverse of the direction in which the table moves, and theother a movement imparted vto it in the line of the movement of thetable.

2. In a black lead machine, the combination of a reciprocating tablewith brushes arranged over the table and means for moving the brushes,whereby one of the brushes oscillates transversely of the direction inwhich the table moves and the other has imparted to it a combinedvertical and longitudinal movement.

3. In a machine provided with means for applying black lead, thecombination of a reciprocating table,a hopper arranged over the table,shovels arranged to deposit the black lead in said hopper, and aconnection between said shovels and table 'whereby the former areoperated automatically.

4. In a machine provided with means for applying black lead, thecombination of a reciprocatin g table, a hopper arranged over the table,a receptacle beneath the table, and

shovels arranged to transfer the black lead from the receptacle to thehopper.

5. In a machine provided with means for applying black lead, thecombination of a table, a hopper arranged over the table, a receptaclebeneath the table, shovels for transferring the black lead from thereceptacle to the hopper, and means for operating the shovels consistingof a shaft on which the shovels are mounted, a lever secured to theshaft, and a strap connecting the lever to the table.

6. In a machine provided with means for applying black lead, thecombination of a table, a hopper arranged over the table, a receptaclebeneath the table, and means for transferring the black lead from thereceptacle to the hopper, consisting of pivoted arms, and shovelseccentrically hinged to the arms.

7. In a black lead machine, the combination of a reciprocating table, ahopper arranged over the table, a valve located in the hopper, a leverhavinga pawl and ratchet connection with the valve, and a springactuated pin in the lower end of the lever and against which the tableimpinges to operate the valve.

8. In a machine provided with means for applying black lead, thecombination of a reciprocating table, and a signal device, consisting ofa gong and mechanism interposed between the gong and the table, wherebythe signal is sounded after the table has made the desired number ofmovements back and forth.

9. In a machine provided with means for applying black lead, thecombination of a reciprocating table a pawl on said table and a signal,consisting of a gong and mechanism located between the gong and thetable, consisting essentially of a fixed frame, a movable frame providedwith teeth adapted to be engaged by said pawl on the table, and a leverconnected with the movable frame and which is also connected withthehammer of the gong.

10. In a machine provided with means for applying black lead,thecombination of a re ciprocating table, a signal consisting of a gong,and mechanism located between the,

gong and the table, consisting essentially of a fixed frame having a bar90 with a recess 91, and having perforations 94 to receive the pin 93, amovable frame having ratchet teeth adapted to be engaged by a pawl onthe table,

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